AirSep External Battery
AirSep External Batteries are the newest product from the line that created one of the smallest oxygen concentrators on the market and is compatible with the Focus1, Freestyle 32, and Freestyle 52. AirSep External Battery are small and lightweight and include a wearable belt clip that will make them inconspicuous underneath your shirt or jacket. The batteries can be charged at the same time in the AirSep Charging Dock separate from the unit. They are an excellent alternative for those who want more battery life for their lightweight portable unit.
Each battery only takes 5 hours to recharge from 0-100%. One battery will last for 3.5 hours on a setting of 2 with the AirSep Focus. With the battery, the Freestyle can give you up to 6 hours on a setting of 1 and 5 hours on a setting of 2.5. The Freestyle 5 can give you up to 4 hours on the setting of 1 and 2 hours on the setting of 5.